Ceiling fan-motor



(No Model.) 2 Sheets-Sheet 1.-

W. HOGHHAUSEN.

CEILING PAN MOTOR.

No. 512,821. Patented Jan. 16,1894.

N \/E N TUB W lfoclz [Mame/L 1'! nun-Wu. umoelum courAny, \nlnmerou. u.c.

{No Model.)

2 Sheets-Sheet 2.

W. HOCHHAUSEN.

CEILING PAN MGTOR.

F0. 512,821. Patented Jan. 16, 1894;.

IN VE N T 0F oohhoazse 17/ m! mmoum. L

UNITED STATES PATENT OFFICE.

\VILLIAM IIOOHHAUSEN, OF BROOKLYN, NElV YORK.

CEILING FAN-MOTOR.

SPECIFICATION forming part of Letters Patent No. 512,821, dated January16, 1894.

Applicationfiled September 4, 1891. Serial No. 404,779. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM HOCHHAUSEN, a citizen of the United States,and a resident of Brooklyn, in the county of Kings and State of NewYork, have invented a certain new and useful OeilingFan-Motor, of whichthe following is a specification.

My invention relates to electric fan motors and particularly to electricmotors designed to be suspended from a ceiling and to operate a fanbeneath.

The object of my invention is to secure a simple, compact and cheapconstruction, as well as to allow for continued lubrication of thearmature bearing without danger of scattering the oil or lubricant, orallowing the lubricant to drip from the machine.

A further object of my invention is to provide for the ready detachmentof the armature from the apparatus in case the necessity for repairarises.

The invention consists in the novel features of construction andcombination of parts as hereinafter more particularly described and thenspecified in the claims. In the accompanying drawingsFigure 1, is a sideelevation of an apparatus embodying my invention a part being shown invertical section. Fig. 2, is avertical section and detail side elevationof the parts at the upper end of the armature shaft. Fig. 3,is aplan ofthe apparatus looking upward. Fig. 4:, is a side view of one of thebrackets carrying the commutator brush. Fig. 5, is a plan of the lowerbearing of the armature shaft.

A, indicates a head consisting of a plate, preferably of iron from whichthe field magnets of the motor are suspended being attached directly tosaid head by means of bolts or screws a.

In ordinary forms of motor the head A, may constitute the magnetic yokepiece connecting the two cores of the field magnet. The head A, isitself attached to the lower end of a tube 13, which in turn issuspended from the ceiling in any suitable manner. This tube B,is shownas broken away in order to bring all the parts within the compass of thedrawings. The said tube forms a passage for the conducting wires whichsupply the operating current to the motor and being carried down throughsaid tube are attached in any proper way to the terminals of theelectric motor as well understood in the art.

0, O, indicate the two legs or sides of a field magnet the cores ofwhich, being bolted to the head A, in vertical position and parallel toone another, terminate in the two pole pieces D, D, between which thearmature E, of the machine rotates in the usual manner. The armature maybe wound or constructed after any desired fashion and have its wiresconnected to the segments of the commutator cylinder E upon which bearthe commutator brushes or blocks to be presently described.

E indicates the armature shaft which r0- tates in suitable journalbearings attached respectively to the head A, and toa cap orsupportfastened directly to the field magnets beneath the same. The lowersupport or journal bearing bracket is indicated at F, and is formedpreferably as a cap piece which closes in the parts below the fieldmagnet. The support F, is attached by screws or bolts indicated at W, tothe field magnet as, for instance, when the pole pieces are inverted, asshown, directly to said pole pieces.

G, is the bushing or tube which forms a journal box for the shaft At E,the shaft is provided with an offset or collar which rests upon the topof the tube or bushing G, so that the latter at its upper end forms avertical bearing for the armature shaft by which the said armature andshaft are supported against downward movement. The tube or bushing G,also forms the side bearing for the armature, holding the same incentral position with relation to the field magnet.

Around the bushing or bearing G, is formed a cavity as shown whichconstitutes an oil reservoir and is preferably filled with someabsorbent material like felt. The tube or bushing G, is cut or slottedat its top said out extending from the top aconsiderable distancedownward and forming a passage between the oil cup or cavity and thearmature shaft. The absorbent filling the space indicated furnishes aconstant oil supply, the vertical as well as the horizontal surfacesbeing kept well lubricated. The oil cup and bearings thus formed arepreferably made as shown in one piece with the cap or bracket F. Asimilar bearing for the upper end of the armature shaft is indicated atG and is attached by suitable screws or bolts to the lower side of thehead A. The construction of this bearing is shown more clearly in Fig.2. It is similar to that at the lower end with the exception that it isnot formed with any vertical bearing for the armature shaft so that thelatter may he slipped downward when the lower vertical bearing uponwhich the armature is entirely supported is removed.

H, H, are the brush supporting arms or brackets for the commutator ofthe machine. These arms or brackets are fastened to the lower side ofthe head A, as shown, being, for that purpose, provided with suitableears h, which are held between blocks of insulating material I), thewhole being fastened to the head by means of a screw passing through theblock and ears, as indicated. Thecommutator brush itself may consist ofa block I, of carbon or other suitable material which is held in contactwith the commutator cylinder by means of a spring K, fastened at one endto the arm or bracket H, and at its free end bearing on said block.

M, indicates a lubricating rubber of any suitable material which bearsconstantly upon the commutator cylinder E, and is designed to lubricateand prevent cutting of the surface of the commutator blocks or pieces.This lubricating rubber preferably consists of a. piece of felt or otherabsorbent wh1ch 1s held in position, as indicated, by means of a springN, fastened to one of the commutator brush arms H, and bearing at itsfree end upon the rubber so as to hold it firmly in position between thespring and the arm.

R, indicates a suitable sheet metal case designed to protect the partsof the motor. This case at its upper end engages with the head A, and atits lower end is fastened to the under side of a flange upon the bracketor cap F. The case being larger at its upper end it can be readilyslipped down by disconnecting it from the flange upon the cap- F.

It will be seen that the only thing necessary in order to remove ordetach the armature is to detach the cap F, from the field magnet poles.It will also be seen that the apparatus is very compact.

I do not limit myself to any particular number of field magnet cores norto any particular construction of armature.

It will also be readily understood that the form of the bearings for thearmature shaft may be varied and that the position of the field magnetcores might be inverted thus bringing the poles pieces uppermost. Iprefer, however, for the sake of compactness, to

mount the field magnet cores in the way shown with the pole pieceslowermost the space between the field magnet coils being utilized forthe commutator the brush supporting arms of which are attached directlyto the head A.

What I claim as my invention is 1. The combination substantially asdescribed, of the supporting head, the field magnet cores boltedthereto, a journal bearing cap closely fitted at its periphery to thefield magnet, and the armature having its vertical bearing on said cap.

2. In an electric fan motor, the combination with the field magnet polepieces, of a journal bearing cap for the armature shaft closely fittedand detachably secured to the lower end of the pole pieces and having anoil cup or cavity.

3. The combination substantially as described with the vertical armatureshaft, of the end bearing support therefor fastened to the field magnetpole pieces, and having the annular oil cavity, provided with a slot inits inner wall as and for the purpose described.

4. In an elecric fan motor the combination With the vertical armatureshaft, of the combined horizontal and vertical bearing having an oilchamber outside of it, and provided with a cut or slot extending fromits top downward to contain the oil supply wick and connected to thefield magnet.

5. The combination substantially as de. scribed in a fan motor, of thesupporting head, the field magnets secured thereto, and a journalbearing cap or head for the armature shaft closely fitted and detachablysecured to said field magnet beneath the same, as and for the purposedescribed.

6. The combination in a fan motor, of a supporting head attached to thelower end of a wire carrying tube, in a manner such that the tube passesthrough said head and delivers the wires on the under side thereof anelectric motor having parallel field magnet cores attached beneath saidhead, and a vertical armature shaft having a journal bearin g detachablyfastened to said field magnets beneath the same.

7. The combination substantially as described in a fan motor, ofthesupporting head, the vertical parallel field magnets, the armaturerotating between the pole pieces of said field magnet, and a verticalbearing for the armature shaft mounted in a closely fitting support anddetachably secured directly to the field magnets beneath the same.

8. The combination in a fan motor, of the two field magnet coresdepending from a suitable supporting head with their pole piecesdownward, and a cap fastened to the lower end of said field magnet andhaving a vertical armature shaft bearing and oil cavity or cup made inone piece with it.

9. The combination substantially as de scribed, with a vertical armatureshaft, of the cap at its lower end furnished with an oil cavity,surrounding the horizontal bearing of the armature, and a verticalbearing for the armature at the top of the horizontal hearing, as andfor the purpose described.

10. The combination in a fan motor, of the field magnet supporting head,a lubricating oil box and bearing secured to the bottom IIO side of thehead, and an armature shaft journaled in said hearing, as and for thepurpose described.

11. The combination in a fan motor, of the field magnet supporting head,a commutator brush arm depending vertically from the head but insulatedtherefrom and terminating in a socket or brush support having ahorizontal opening, a brush in said guide or opening, and a springmounted on the bracket and tending to force the brush against thecommutator, as and for the purpose described.

12. In a fan motor, the combination substantially as described, of thesupporting tube carrying the supply wire and having at its lower end asupporting head, through which it passes to deliver the wires on theunder side thereof a field magnethavingtwo vertical cores secured to thelower side of said head and depending vertically therefrom parallel toone another, a journal bearing for the armature shaft of the motor alsofastened beneath said head, and a lower journal bearing carried by thebracket or support detachably secured to the lower end of the fieldmagnet.

13. The combination in a fan motor, of a field magnet depending from asuitable supporting head, a journal bearing carried by a supportdetachably secured to the under side of the field magnet, an armaturehaving its vertical bearing entirely on said lower support, an upperjournal bearing for said armature secured to the head which carries thefield magnet, and annular oil-cups formed by said journal bearings asand for the purpose described.

14. The combination substantially as described,with the commutatorcylinder, of the lubricating rubber, the commutator brush support, andthe spring for holding the rubber against the bracket but in constantconnection with the commutator cylinder.

15. The combination of the supporting head, the field magnet coresdepending therefrom, the cap inclosing the lower armature bearing, andthe case fitted to said head and inclosing the field magnets,substantially as set forth.

16. The combination of the supporting head, the field magnet coresdepending therefrom, the journal bearing cap for the armature secured tothe lower end of said cores, and a case fitted to said head and securedto said cap, as and for the purpose described.

Signed at New York, in the county of New York and State of New York,this 14th day of July, A. D. 1892.

YVILLIAM HOOHHAUSEN.

Witnesses:

WM. H. GAPEL, THos. F. OoNRnY.

